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WA5344200 · Washington

LAKE MARGARET WATER SYSTEM

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown
43
EPA health-based flag
0
Health-based records unresolved in this snapshot
0
Monitoring and reporting records
40

Counties listed by EPA · King County, Washington

Open the EPA system record

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 43 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 91 days. The interval uses the reporting periods and dates on file.

  1. Other or unclassified · Resolved

    Consumer Confidence Report Complete Failure to ReportViolation 2566962 · Consumer Confidence Rule · Consumer Confidence Rule

    Noncompliance period start July 1, 2025 · period end October 8, 2025 · first reported December 11, 2025 · EPA return-to-compliance field October 8, 2025

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    66962ENFOctober 8, 2025ResolvingState Compliance achieved
  2. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952996 · Styrene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  3. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952992 · Ethylbenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  4. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952991 · Toluene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  5. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952990 · Benzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  6. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952989 · CHLOROBENZENE · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  7. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952987 · Tetrachloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  8. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952985 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  9. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952984 · Trichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  10. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952983 · 1,2-Dichloropropane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  11. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952982 · Carbon tetrachloride · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  12. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952981 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  13. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952980 · 1,2-Dichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  14. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952979 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  15. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952977 · 1,1-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  16. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952976 · Vinyl chloride · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  17. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952969 · p-Dichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  18. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952968 · o-Dichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  19. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952964 · DICHLOROMETHANE · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  20. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952380 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  21. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 24674952378 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2024 · period end March 31, 2024 · first reported June 26, 2024 · EPA return-to-compliance field March 31, 2024

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  22. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832996 · Styrene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  23. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832992 · Ethylbenzene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  24. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832991 · Toluene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  25. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832990 · Benzene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  26. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832989 · CHLOROBENZENE · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  27. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832987 · Tetrachloroethylene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  28. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832985 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  29. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832984 · Trichloroethylene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  30. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832983 · 1,2-Dichloropropane · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  31. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832982 · Carbon tetrachloride · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  32. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832981 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  33. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832980 · 1,2-Dichloroethane · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  34. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832979 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  35. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832977 · 1,1-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  36. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832976 · Vinyl chloride · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  37. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832969 · p-Dichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  38. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832968 · o-Dichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  39. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832964 · DICHLOROMETHANE · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  40. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832380 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  41. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 23392832378 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start October 1, 2023 · period end December 31, 2023 · first reported March 29, 2024 · EPA return-to-compliance field December 31, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3067495ENFJune 19, 2024ResolvingState Compliance achieved
  42. Other or unclassified · Resolved

    Consumer Confidence Report Complete Failure to ReportViolation 2362742 · Consumer Confidence Rule · Consumer Confidence Rule

    Noncompliance period start July 1, 2023 · period end October 6, 2023 · first reported March 29, 2024 · EPA return-to-compliance field October 6, 2023

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    62742ENFOctober 6, 2023ResolvingState Compliance achieved
  43. Other or unclassified · Resolved

    Consumer Confidence Report Complete Failure to ReportViolation 2260682 · Consumer Confidence Rule · Consumer Confidence Rule

    Noncompliance period start July 1, 2022 · period end December 15, 2022 · first reported December 28, 2022 · EPA return-to-compliance field December 15, 2022

    1 linked action
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    60682ENFDecember 15, 2022ResolvingState Compliance achieved

EPA data and scope

How to read the records

The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.

EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility